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Service modes, fault finding and repair tips
5. Service modes, fault finding and repair tips
The E-Box and the Monitor are separate devices, which can
also be sold and serviced separately.
The E-box, as a stand-alone unit, can be serviced by using a
test pattern coming from the FBX inside the E-box or via a PC/
Laptop by using ComPair via the bi-directional LED at the front.
The Europe type (FTR9952) consisting of 2 Versions:
•
FTV1.9 Western Europe stroke /12
•
FTV1.9 France/UK stroke /19
In this chapter the following paragraphs are included:
1. Test points
2. Dealer Service Tool (DST)
3. Service Modes
4. Error code buffer and error codes
5. Fault-finding tips
6. ComPair
5.1
Test points
The FTV1.9 chassis is equipped with test points in the service
printing. These test points are referring to the functional blocks:
•
B1-B2-B3, etc.:
(AVB)
•
TP1-TP2-TP3, etc.: Test points for the Feature Box (F)
•
S1-S2-S3, etc.:
and the Small Signal Panel SSP (S1-S8)
•
P1-P2-P3, etc:
Measurements are performed under the following conditions:
Video: colour bar signal; Audio: 3 kHz left, 1 kHz right
5.2
Dealer Service Tool (DST)
For easy installation and diagnosis the dealer service tool
(DST) RC7150 can be used. When there is no picture (to
access the error code buffer via the OSD), DST can display the
contents of the entire error code buffer, via the send-LED, on
its own LC display. The ordering number of the DST (RC7150)
is 4822 218 21232.
5.2.1
Installation features for the dealer
The dealer can use the RC7150 for programming the TV-set
with pre-sets. 10 Different program tables can be programmed
into the DST via a GFL TV-set (downloading from the GFL to
the DST; see GFL service manuals) or by the DST-I (DST
interface; ordering code 4822 218 21277). For explanation of
the installation features of the DST, the directions for use of the
DST are recommended (For the FTV1.9 chassis, download
code 4 should be used).
5.2.2
Diagnose features for service
FTV1.9 sets can be put in two service modes via the RC7150.
These are the Service Default Mode (SDM) and the Service
Alignment Mode (SAM).
5.3
Service Modes
Below described sequence is only valid for the "TV
Configuration", when a Monitor is connected to an E-box.
When you have to service the "Monitor Only Configuration" ,
please check chapter 5 in the Training Manual of the Display
Box.
5.3.1
Service Default Mode (SDM)
The purpose of the SDM is:
Test points for the AV Buffer circuit
Test points for the Double window (P)
Test points for the Supply E-box (SU)
FTV1.9EE
•
provide a situation with predefined settings to get the same
measurements as in this manual.
•
Inspect the error buffer.
•
Possibility to overrule software protections via the service
pins (caution: override of software protections! ).
Entering the SDM:
•
By transmitting the "DEFAULT" command with the RC7150
Dealer Service Tool (this works both while the set is in
normal operation mode or in the SAM).
•
When using a standard RC: sequence 062596 followed by
the "MENU" key.
•
By short-circuiting the SDM pin on the SSP panel (see TM
Receiver Box chapter 4).
Exit the SDM:
Switch the set to Standby.
Note: When the mains power is switched off while the set is in
SDM, the set will switch to SDM immediately when the mains
is switched on again. (The error buffer will not be cleared).
The SDM sets the following pre-defined conditions:
•
Volume level is set to 25% (of the maximum volume level).
•
Linear Audio and Video settings are set to 50%.
•
Colour temperature is set to normal.
The following functions are "overruled" in SDM since they
interfere with diagnosing/repairing a set
•
Video blanking.
•
Slow demute.
•
Anti-ageing.
•
Automatic switch to "Standby" when H- and/or V-sync
signals are lost.
All other controls operate normally.
Special SDM functions
Access to normal user menu:
Pressing the "MENU" button on the remote control will enter the
normal user menu (TV lock, Installation, Brightness, colour and
contrast) while "SER" remains displayed in top of screen).
Pressing the "MENU" key again will return to the last SDM
status.
OSD:
Pressing the "OSD" button on the remote control shows all
OSD information (incl. error buffer).
5.3.2
Service Alignment Mode (SAM)
The purpose of the SAM is to align and or adjust settings.
Entering the SAM-menu:
•
By pressing the "ALIGN" button command on the RC7150
DST followed by code 3140 and "OK". Note: when
pressing the "ALIGN" button, point to the IR-receiver of the
Display Box but after that (for entering the code, etc.), point
to the IR-receiver of the Receiver Box!
•
Standard RC sequence 062596 followed by the key "OSD".
•
By short-circuiting the SDM pin (connector S98) on the
SSP panel (caution: override of software protections! ).
Exit the SAM:
Switch the set to STANDBY.
Note: When the mains power is switched OFF while the set is
in SAM, the set will switch to SAM immediately when the mains
is switched ON again. (The error buffer will not be cleared).
In the SAM the following information is displayed on the screen:
--------------------------------------------------
E-box
Date :
Operation hours : (2)
Errors (3)
Defect. Modules : (4)
Reset Error Buffer (5)
Functional Test E-box (6)
Alignments E-box (7)
5.
GB 23
Id: (1)
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